Malicious Office (OLE) / .DOC — malware analysis report

Static analysis result for SHA-256 81052c247e6f7137…

MALICIOUS

Office (OLE) / .DOC

55.0 KB Created: 2002-12-01 08:12:00 Authoring application: Microsoft Office Word
MD5: 69c90bed489d882f597c280fe7da6f64 SHA-1: 902f847cf9815ca0a46ce5b0f65ebeea81d030f9 SHA-256: 81052c247e6f71377d30a5d464c0a99061a5b5844fb72cb9bdcb73d6cf3f7e79
340 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell T1204.002 Malicious File

The sample contains a VBA macro that is automatically executed via the Document_Open event. This macro utilizes WScript.Shell and CreateObject to execute commands, strongly indicating an attempt to download and run a second-stage payload. The presence of a Shell() call and WScript.Shell usage are critical indicators of this behavior. The embedded URL http://www.besecure.eu is likely part of this malicious chain.

Heuristics 9

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.besecure.eu

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
b0099e767ad73e16c31e320c9b97afbe8c6f46f96fa8e1cf2c6ffa03e7f41e4f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1391 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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